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MERSEN FUSE 6,9 URD 33 TDF 1250 PC33UD69V13CTD
Why Choose the MERSEN FUSE 6,9 URD 33 TDF 1250 PC33UD69V13CTD?
Why Choose the Mersen M300276 High Speed Semiconductor Fuse?
The Mersen M300276, also referenced as PC33UD69V13CTD, is a high performance ultra-fast semiconductor protection fuse engineered to safeguard power electronic equipment against damaging short circuits. Designed as part of Mersen's trusted semiconductor fuse range, it provides rapid fault interruption to protect sensitive devices including drives, inverters, UPS systems and industrial power converters.
Featuring a 690 V AC rating, 1250 A current rating and aR operating class, this square body fuse delivers exceptional protection for semiconductor components while helping minimise downtime and expensive equipment damage. Its robust construction and high breaking capacity make it suitable for demanding industrial and OEM applications.
The M300276 incorporates a size 33 square body design with TDF blade terminals and an integrated striker (percuteur), allowing reliable installation into compatible fuse bases and monitoring systems used throughout industrial electrical installations.
Key Advantages
- Ultra-fast aR semiconductor protection fuse for power electronics.
- 1250 A rated current for high power industrial applications.
- 690 V AC operating voltage.
- Protects IGBTs, diodes, thyristors and other semiconductor devices.
- Square body size 33 design for reliable industrial installation.
- Integrated striker indicator for fuse operation monitoring.
- High interrupting capability reduces damage during fault conditions.
Key Features
- Mersen semiconductor protection fuse.
- Manufacturer part number: M300276.
- Alternative SKU: PC33UD69V13CTD.
- 1250 A current rating.
- 690 V AC voltage rating.
- aR ultra-fast protection characteristic.
- Square body size 33 construction.
- TDF blade terminal connections.
- Integrated striker (percuteur) for indication.
Reliable Protection for Power Electronics
High speed semiconductor fuses are specifically designed to clear fault currents before they can damage expensive semiconductor devices. Unlike conventional power fuses, aR fuses react extremely quickly to short circuits, helping extend equipment life while reducing costly production downtime.
The Mersen M300276 is widely specified for industrial power conversion systems where reliable semiconductor protection is essential for maintaining safe and efficient operation of electrical equipment.
Typical Applications
- Variable frequency drives (VFDs).
- Industrial motor drives.
- Power converters and rectifiers.
- UPS systems.
- Renewable energy power conversion equipment.
- Industrial automation and OEM machinery.
- Soft starters and power supplies.
Technical Specifications
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| Fuse Indication | Striker | |
|---|---|---|
| Device Type | Fuse link | |
| Fuse Type | Semiconductor | |
| Fuse Class | aR | |
| Current | 1250 A | |
| Voltage | 690 V | |
| Manufacturer | Mersen | |
| Model | M300276 | |
| Alternative SKU | PC33UD69V13CTD | |
| Product type | High speed semiconductor fuse | |
| Fuse class | aR | |
| Rated current | 1250 A | |
| Rated voltage | 690 V AC | |
| Body size | Size 33 square body | |
| Terminal type | TDF blade terminals | |
| Indicator | Integrated striker (percuteur) | |
| Application | Semiconductor protection | |
| Mounting | Compatible square body fuse holders |
Frequently Asked Questions
What is the Mersen M300276 used for?
The M300276 is an ultra-fast semiconductor protection fuse designed to protect sensitive power electronic components such as IGBTs, diodes and thyristors from damaging short circuits.
What is the current rating of this fuse?
This fuse has a 1250 A rated current.
What voltage is the M300276 rated for?
The fuse is designed for operation on systems up to 690 V AC.
What does the aR classification mean?
The aR operating class provides partial range, ultra-fast protection specifically for semiconductor devices where rapid fault clearance is essential.
What equipment commonly uses this fuse?
The M300276 is commonly installed in industrial drives, power converters, UPS systems, renewable energy equipment and other high power electronic applications.
Trusted for Critical Circuit Protection
Mersen semiconductor fuses are trusted worldwide by electrical engineers, panel builders and OEM manufacturers to provide dependable protection for critical power electronic equipment operating in demanding industrial environments.
